Manufacture of glass sheets.



PATENTED SEPT. 25, 1906.

B.- 0. WHITE. MANUFACTURE '50P GLASS SHEETS. APPLICATION PILED AUG 12 1965 III/II; C

BRUCE CLARK Wl-HTE, OF MOSGROVE, PENNSYLVANIA.

WHENUFMCTURE OF GLfliSS SHEETS.

Specification of Letters Patent.

Patented Sept. 25, 1906.

Application filed August 12,1905. Serial I'lo. 273,951.

. (all whrmt it "may COIbCfiTiL.

Be it known that l, Bnr on CLARK Wnrrn, a. citizen of the United States, residing at llios rove, in the county of Armstrong and,

the limit ol? tho roll or between the rolls. it happens that a port-ion of the shoot at its front end will not have a width equal to that j of the body of the shoot. in other words, I

the shoot always begins with a point or narrow end and grmlually widens out to the dosired width. This irregularly-iraped front portion is useless and must be cut off, entailing considerable waste.

The invention described herein has for its object imparting to the body of glass to be 1 rolled into a shoot a. preliminary shapo having 3 one dimension-d. a, the width of the sheet to and the table or bed moved under it or tho ladle moved along a stationary bed or table.

be formed.

The invention is hereinafter described and claimed.

l n the accompanying drawings, forming a part ol this specification, Figure l is View of a form of apparatus having rolls for shaping the shoot adapted for the practice ol" iny iuvcntiou. Fig. 2 is a sectional clovation on a plane indicated by the lino ll ll, Fig. l. l ig. is a perspective viow ol'- a lorm of apparatus in which the sheet is l'ormcd by the conjoint action of a table and roll; and Fig. 4

is a yiow similar to Fig. 2, illustrating a modiiirailon.

in me. practice-oi my invention tho glass is talccu from tho l'uruaco bya ladlc or rcccptaclo such, for oxamplc, as 'thnl. shown and bed in an application liled by mo Aul.;'\ 3, Sorial Yo. 273,.l52-l" )rmcd in two parts or scctions l and 3. The glass is scmiped up by tho closing ol' the sections and is ovcnly dislributcd throughoul l'ac ladlc or rccoplzu-lc. 'lhe receptacle or ladlc is mado ol' a length coual or approxhnatcly cqual lo .hc width ol" shoot to he l ormcd, and as ho glass is cvonly dislributcd in the rcccplaclc the glass will on the scparalion of tho soca plan l l I l tions be evenly distributed between the rolls 3 ii. Figs. 1 nd 2 or across the table. 4 in front or the roll 5 in Fig. 3. VVhilo either of the constructions shown in the application Serial No. 273,952 may be used in the practics of my invention, it is preferred to use the construction in which the ladle-sections are maintained in parallelism. When the sheets are formed by the conjoint action of two rolls, as in Fig. *1, it is customary to pour the glass into a hopper having its outlet in line with the opening between the rolls, and tho glass will run between the rolls onto the mow able supporting-table 4 in lino with the lirst pouring, and as the ladle is moved along the trough the sheet will finally attain full width. in the practice of my invention the ladle is forcod in line with the opening between the rolls, and on the separation ol the. sections a stream of glass of a widthmuial to that ol the shootto be formed will llow between tho rolls. As the thickness of the stream of glass will bo in accordance with the distanco tho sections arc separated, it is apparent that tho rolls may be used to only slightly reduce the shoot flowing from the ladle and may, if desired, be entirely dispensed with, in which caso the ladle would be suitably supported In the form of apparatus shown in Fig. 0 the table with the glass is moved to position in front of the. roll and. the sections opcnod, depositing on the table a mass of glass having a dimension parallel with the roll equal or up proximutoly equal to the width of the shoot to be formed. With such an oven distribu tion ol glass in front of the roll tho first part ol" tho sheet formed by the movcnwntol tho roll will be of hill width.

As is well known in tho art, a portion of chillcd or hardened glass incorporated in a plastic body altcr rcmoval l'rom the l'urnarc will not be thoroughly remeltcd and will dis figure tho article from such body ol glass. rr'hcn glass is transl'erred by a tipping ladle. to a shaping mechanism, the pouring lrom the ladlo into the mechanism will inevitably cause the incorporation ol' any hardened parliclos on tho ladle with the controls thcrool'. lu using, my huprovcd ladle the glass drops down without any turning over or stirring up inlo .hc shaping mcchaulsm, so that any hardened purliclos.siicliasthcl hiu lilmshowu at a in big; 4, will pass in. advance of the the glass.

, glestic glass between the rolls and the dis the shening mechanism first in Contact with As shown in Fig. 4, a feed-hopper may he used'and the glass be deposited by the ladle therein. The use of such hopper, which preferably corresponds as to length, Width, and depth to the ladle, would not invol e any undue agitation. of the glass.

I cleim herein as myinvention- 1. As on improvement intho art of fOiflling sheets of gless the method herein doscribed which consists in segregating amess of glass, imparting to said mess of glass one of the dimensions of the sheet to be formed and then reducing the mass of glass to shoe" form.

2. As an improvement in the art of forming sheets of glass the method herein do scribed, which consists in segregating a mess ofgless, imparting to soch segregated mess of glass a dimension equal or approximately equal tothe Width of the desired sheet, feed mg such shaped mess to shaping elements; or

parts and then redueingthe sired thickness.

an improvement in the art offerining sheets of glass the method herein de-, scribed which. consists in giving" to a segregated mess of gless'while removing it hz'om glass to the de metely equal to one of the dimensions of the sheet to be formed, end thenreducmg-the glass to sheet form.

4. As en imfrovement in the est of forming sheets of gloss the method herein de scribed which consists in giving to a segrested mess of less n'io'r to feedin it to the 1 I i n s l sheet-lormmg mechanism, a dimension equal or epproxnnetely equel to one of the dimen- 'the furnace, a dimension equal or eppi'oxi ho sions of the sheet to he formed, ondreducing the desired thickness. I

so an improvement in the/left of forming sheets or glass, the methodfhei'ein described, which consists in detaching endrethe to moving; at mass of glass from a furnace, and

firmness VERNAN. 

